ES2045227T3 - DEVICE FOR THE FORMATION OF A CLOSED ENCLOSURE INSIDE TWO METALLIC PIPES TO BE UNITED BY WELDING WITH ARC LOW PROTECTION GAS. - Google Patents
DEVICE FOR THE FORMATION OF A CLOSED ENCLOSURE INSIDE TWO METALLIC PIPES TO BE UNITED BY WELDING WITH ARC LOW PROTECTION GAS.Info
- Publication number
- ES2045227T3 ES2045227T3 ES89105400T ES89105400T ES2045227T3 ES 2045227 T3 ES2045227 T3 ES 2045227T3 ES 89105400 T ES89105400 T ES 89105400T ES 89105400 T ES89105400 T ES 89105400T ES 2045227 T3 ES2045227 T3 ES 2045227T3
- Authority
- ES
- Spain
- Prior art keywords
- air chamber
- formation
- pipe
- welding
- united
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- 238000003466 welding Methods 0.000 abstract 2
- 239000011324 bead Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
- B23K9/0282—Seam welding; Backing means; Inserts for curved planar seams for welding tube sections
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
- Pipe Accessories (AREA)
Abstract
Dispositivo para la formación de un recinto cerrado en el interior del conjunto de dos tuberías metálicas (1) a ser unidas por soldadura con arco bajo gas de protección, que comprende una primera cámara de aire tórico de elastómero (2) en el interior de la primera tubería, una segunda cámara de aire tórica de elastómero en el interior de la segunda tubería, hinchándose ambas hasta obturar la tubería correspondiente, y portadas respectivamente por un elemento circular de soporte resistente a la diferencia de presión entre la atmósfera ambiente y la presión interna deseada, horadado con un orificio (6) conectado con un adaptador (10) de introducción o de evacuación de un gas de protección del reverso del cordón de soldadura, caracterizado porque cada elemento circular de soporte es un disco (3) pegado sobre el meridiano ecuatorial interno de la cámara de aire correspondiente, y de diámetro suficiente como para hacer cóncava la zona de la cámara de aire próxima a este meridiano ecuatorial interno, y porque los grupos de una cámara de aire y del disco pegado con la misma son mecánicamente independientes entre sí.Device for the formation of a closed chamber inside the set of two metal pipes (1) to be joined by arc welding under protective gas, which comprises a first elastomeric toric air chamber (2) inside the first pipe, a second elastomeric toric air chamber inside the second pipe, both swelling until the corresponding pipe is closed, and respectively carried by a circular support element resistant to the pressure difference between the ambient atmosphere and internal pressure desired, drilled with a hole (6) connected with an adapter (10) for introducing or evacuating a shielding gas from the back of the welding bead, characterized in that each circular support element is a disk (3) glued on the meridian internal equatorial of the corresponding air chamber, and of sufficient diameter to make the area of the air chamber close to this internal equatorial meridian, and because the groups of an air chamber and the disk attached to it are mechanically independent of each other.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8804302A FR2629378B1 (en) | 1988-03-31 | 1988-03-31 | DEVICE FOR FORMING A CLOSED ENCLOSURE WITHIN TWO METAL PIPES TO BE CONNECTED BY ARC WELDING UNDER PROTECTIVE GAS |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2045227T3 true ES2045227T3 (en) | 1994-01-16 |
Family
ID=9364855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES89105400T Expired - Lifetime ES2045227T3 (en) | 1988-03-31 | 1989-03-28 | DEVICE FOR THE FORMATION OF A CLOSED ENCLOSURE INSIDE TWO METALLIC PIPES TO BE UNITED BY WELDING WITH ARC LOW PROTECTION GAS. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4931612A (en) |
EP (1) | EP0335305B1 (en) |
DE (1) | DE68910355T2 (en) |
ES (1) | ES2045227T3 (en) |
FR (1) | FR2629378B1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5187343A (en) * | 1991-10-30 | 1993-02-16 | Edwards Thomas W | Purge block for pipe welding |
DK172386B1 (en) * | 1995-11-15 | 1998-05-11 | Danbor Service As | Method and apparatus for welding pipe ends together |
US7160061B2 (en) * | 2000-12-04 | 2007-01-09 | Battelle Energy Alliance, Llc | Subterranean barriers including at least one weld |
US7146923B2 (en) * | 2004-03-30 | 2006-12-12 | Cryogenic Plastics, Inc. | Valve structure, bladder, and hull portion for inflatable boats |
US20080251132A1 (en) * | 2007-04-10 | 2008-10-16 | Michael Eric Bentley | Flexible inflatable purge block for high purity welds |
CN102126070B (en) * | 2011-03-31 | 2013-07-31 | 广州广船国际股份有限公司 | Inflation protection device and method for welding of pipe fitting |
EP3542945A1 (en) * | 2018-03-19 | 2019-09-25 | Linde Aktiengesellschaft | Forming device and method for supplying at least one root protection gas |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3194466A (en) * | 1961-02-23 | 1965-07-13 | Orland T Davis | Gas backing blocks for welded joints |
US3387761A (en) * | 1966-02-10 | 1968-06-11 | Kenneth L. Pickard | Internal alignment clamp |
US3424887A (en) * | 1966-08-19 | 1969-01-28 | Barry F Fehlman | Apparatus for welding pipe joints |
GB1404467A (en) * | 1972-08-12 | 1975-08-28 | Ashcroft J | Means for blanking-off the interior of hollow members |
US4101067A (en) * | 1976-07-23 | 1978-07-18 | Sloan Purge Products Co., Inc. | Heat sink welding and purging apparatus |
-
1988
- 1988-03-31 FR FR8804302A patent/FR2629378B1/en not_active Expired - Fee Related
-
1989
- 1989-03-28 DE DE89105400T patent/DE68910355T2/en not_active Expired - Lifetime
- 1989-03-28 ES ES89105400T patent/ES2045227T3/en not_active Expired - Lifetime
- 1989-03-28 EP EP89105400A patent/EP0335305B1/en not_active Expired - Lifetime
- 1989-03-30 US US07/330,579 patent/US4931612A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0335305A1 (en) | 1989-10-04 |
DE68910355D1 (en) | 1993-12-09 |
FR2629378A1 (en) | 1989-10-06 |
US4931612A (en) | 1990-06-05 |
EP0335305B1 (en) | 1993-11-03 |
DE68910355T2 (en) | 1994-03-03 |
FR2629378B1 (en) | 1992-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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